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Message-Id: <20241020-cs42l84-v2-1-37ba2b6721d9@gmail.com>
Date: Sun, 20 Oct 2024 00:47:31 +1000
From: James Calligeros <jcalligeros99@...il.com>
To: Martin Povišer <povik+lin@...ebit.org>,
James Calligeros <jcalligeros99@...il.com>,
David Rhodes <david.rhodes@...rus.com>,
Richard Fitzgerald <rf@...nsource.cirrus.com>,
Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>
Cc: asahi@...ts.linux.dev, linux-sound@...r.kernel.org,
patches@...nsource.cirrus.com, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, Hector Martin <marcan@...can.st>,
Neal Gompa <neal@...pa.dev>
Subject: [PATCH v2 1/3] dt-bindings: sound: Add CS42L84 codec
From: Martin Povišer <povik+lin@...ebit.org>
CS42L84 is a headphone jack codec made by Cirrus Logic and seen in Apple
computer models starting with 2021 Macbook Pros. It is not a publicly
documented part. To a degree the part is similar to the public CS42L42.
(The L84 superseded L83 seen in earlier Apple models, and the L83 was
pretty much the same as L42.)
Signed-off-by: Martin Povišer <povik+lin@...ebit.org>
Signed-off-by: James Calligeros <jcalligeros99@...il.com>
Reviewed-by: Neal Gompa <neal@...pa.dev>
---
.../bindings/sound/cirrus,cs42l84.yaml | 56 +++++++++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 57 insertions(+)
diff --git a/Documentation/devicetree/bindings/sound/cirrus,cs42l84.yaml b/Documentation/devicetree/bindings/sound/cirrus,cs42l84.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..7f8338e8ae369bc529ac3cf35041d5a7b9f3e6d1
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/cirrus,cs42l84.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/cirrus,cs42l84.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic CS42L84 audio CODEC
+
+maintainers:
+ - Martin Povišer <povik+lin@...ebit.org>
+
+description: |
+ The CS42L84 is a headphone jack codec made by Cirrus Logic and embedded
+ in personal computers sold by Apple. It was first seen in 2021 Macbook
+ Pro models. It has stereo DAC for playback, mono ADC for capture, and
+ is somewhat similar to CS42L42 but with a different regmap.
+
+properties:
+ compatible:
+ enum:
+ - cirrus,cs42l84
+
+ reg:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ '#sound-dai-cells':
+ const: 0
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ jack_codec: codec@4b {
+ compatible = "cirrus,cs42l84";
+ reg = <0x4b>;
+ reset-gpios = <&pinctrl_nub 4 GPIO_ACTIVE_LOW>;
+ interrupts-extended = <&pinctrl_ap 180 IRQ_TYPE_LEVEL_LOW>;
+ #sound-dai-cells = <0>;
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index c1a2c296446c0724a0c6e70c845e5e5e1e693fd5..f5f85714dc4e8ca9c60b3f6963b2cec1ea33fdd0 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2132,6 +2132,7 @@ L: asahi@...ts.linux.dev
L: linux-sound@...r.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/sound/adi,ssm3515.yaml
+F: Documentation/devicetree/bindings/sound/cirrus,cs42l84.yaml
F: Documentation/devicetree/bindings/sound/apple,*
F: sound/soc/apple/*
F: sound/soc/codecs/cs42l83-i2c.c
--
2.47.0
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